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Published byDuane Matthews Modified over 9 years ago
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PROPELLER acquisitions on the Philips Achieva 3.0T R1.2.2
T2W TSE – 17 blades, 24 lines / blade T2W FLAIR – 16 blades, 26 lines / blade T1W FFE – 25 blades (over 360°), 32 lines / blade T1W TFE – 7 blades, 64 lines / blade
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T2W TSE PROPELLER - static images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Slices shown (of 18): 1, 5, 9, 13 Based on [Head_CNS -> Brain -> T2W_TSE] preset procedure with the following changes: Preserved Examination Parameters Slice Thickness: 4 Slice Gap: 1 Altered Examination Parameters Coil: SHC8 -> T/R Head FOV: 230 -> 256 RFOV: 80 -> 100 Matrix Scan: 400 -> 256 Reconstruction matrix: 512 -> 256 Scan %: 75 -> 9.375 Slices: 24 -> 18 TSE Factor: 15->24 Propeller blades: 17 maximumPropeller angle: 180 Info Scan time = 01:42.0 WFS (pix) / BW (Hz) = / 250.4 TSE es / shot (ms) = 6.4 / 154 Based on standard Philips 3.0T T2W TSE scan Each image reconstructed from 17 blades spaced over 180° (24 lines wide) acquired in 154 msec 18 fully sampled 256x256 images acquired in 102 seconds - slices 1,5,9,13 shown from an axial scan (left) and sagittal scan (right)
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T2W TSE PROPELLER - motion corrupted images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Slices shown (of 18): 1, 5 Based on [Head_CNS -> Brain -> T2W_TSE] preset procedure with the following changes: Preserved Examination Parameters Slice Thickness: 4 Slice Gap: 1 Altered Examination Parameters Coil: SHC8 -> T/R Head FOV: 230 -> 256 RFOV: 80 -> 100 Matrix Scan: 400 -> 256 Reconstruction matrix: 512 -> 256 Scan %: 75 -> 9.375 Slices: 24 -> 18 TSE Factor: 15->24 Propeller blades: 17 maximumPropeller angle: 180 Info Scan time = 01:42.0 WFS (pix) / BW (Hz) = / 250.4 TSE es / shot (ms) = 6.4 / 154 In-plane axial step motion at midpoint of scan (left) In-plane sagittal step motion at midpoint of scan (right) Slices 1 an 5 shown
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T2W TSE PROPELLER - motion corrupted images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Slices shown (of 18): 9, 13 Based on [Head_CNS -> Brain -> T2W_TSE] preset procedure with the following changes: Preserved Examination Parameters Slice Thickness: 4 Slice Gap: 1 Altered Examination Parameters Coil: SHC8 -> T/R Head FOV: 230 -> 256 RFOV: 80 -> 100 Matrix Scan: 400 -> 256 Reconstruction matrix: 512 -> 256 Scan %: 75 -> 9.375 Slices: 24 -> 18 TSE Factor: 15->24 Propeller blades: 17 maximumPropeller angle: 180 Info Scan time = 01:42.0 WFS (pix) / BW (Hz) = / 250.4 TSE es / shot (ms) = 6.4 / 154 In-plane axial step motion at midpoint of scan (left) In-plane sagittal step motion at midpoint of scan (right) Slices 9 an 13 shown
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T2W FLAIR PROPELLER - static images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Slices shown (of 18): 1, 4, 8, 12 Based on [Head_CNS -> Brain -> T2W_FLAIR] preset procedure with the following changes: Preserved Examination Parameters TR: 11000 IR delay: 2800 Slice Thickness: 4 Slice Gap: 1 Altered Examination Parameters Coil: SHC8 -> T/R Head FOV: 230 -> 256 RFOV: 80 -> 100 Matrix Scan: 352 -> 256 Reconstruction matrix: 512 -> 256 Scan %: 75 -> 10.16 Slices: 24 -> 18 Minimum # of packages: 4 -> 2 TSE Factor: 27->26 Propeller blades: 16 maximumPropeller angle: 180 Info Scan time = 05:52.0 WFS (pix) / BW (Hz) = / 165.1 TSE es / shot (ms) = 9.3 / 241 Based on standard Philips 3.0T T2W FLAIR scan Each image reconstructed from 16 blades spaced over 180° (26 lines wide acquired in 241 msec) 18 fully sampled 256x256 images acquired in 352 seconds - slices 1,5,9,13 shown from an axial scan (left) and sagittal scan (right)
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T2W FLAIR PROPELLER - motion corrupted images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Slices shown (of 18): 1, 5 Based on [Head_CNS -> Brain -> T2W_FLAIR] preset procedure with the following changes: Preserved Examination Parameters TR: 11000 IR delay: 2800 Slice Thickness: 4 Slice Gap: 1 Altered Examination Parameters Coil: SHC8 -> T/R Head FOV: 230 -> 256 RFOV: 80 -> 100 Matrix Scan: 352 -> 256 Reconstruction matrix: 512 -> 256 Scan %: 75 -> 10.16 Slices: 24 -> 18 Minimum # of packages: 4 -> 2 TSE Factor: 27->26 Propeller blades: 16 maximumPropeller angle: 180 Info Scan time = 05:52.0 WFS (pix) / BW (Hz) = / 165.1 TSE es / shot (ms) = 9.3 / 241 In-plane axial step motion at midpoint of scan (left) In-plane sagittal step motion at midpoint of scan (right) Slices 1 an 5 shown
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T2W FLAIR PROPELLER - motion corrupted images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Slices shown (of 18): 9, 13 Based on [Head_CNS -> Brain -> T2W_FLAIR] preset procedure with the following changes: Preserved Examination Parameters TR: 11000 IR delay: 2800 Slice Thickness: 4 Slice Gap: 1 Altered Examination Parameters Coil: SHC8 -> T/R Head FOV: 230 -> 256 RFOV: 80 -> 100 Matrix Scan: 352 -> 256 Reconstruction matrix: 512 -> 256 Scan %: 75 -> 10.16 Slices: 24 -> 18 Minimum # of packages: 4 -> 2 TSE Factor: 27->26 Propeller blades: 16 maximumPropeller angle: 180 Info Scan time = 05:52.0 WFS (pix) / BW (Hz) = / 165.1 TSE es / shot (ms) = 9.3 / 241 In-plane axial step motion at midpoint of scan (left) In-plane sagittal step motion at midpoint of scan (right) Slices 9 an 13 shown
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T1W FFE PROPELLER - static images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Slices shown (of 18): 1, 5, 9, 13 Based on [Head_CNS -> Brain -> T1W_FFE] preset procedure with the following changes: Altered Examination Parameters Coil: SHC8 -> T/R Head FOV: 230 -> 256 RFOV: 80 -> 100 Matrix Scan: 400 -> 256 Reconstruction matrix: 512 -> 256 Scan %: 80 -> 12.5 Slices: 24 -> 18 Slice Thickness: 5 -> 4 Slice orientation: coronal -> [ transverse | sagittal ] TR: shortest -> user defined (150 msec) Flip Angle: 80 -> 60 Partial echo: yes -> no Gradient mode: regular -> default SofTone: yes -> no NSA: 2->1 Propeller blades: 25 maximumPropeller angle: 360 Info Scan time = 02:22.5 TR/TE = 150 / 4.6 WFS (pix) / BW (Hz) = / 217.1 Based on standard Philips 3.0T T1W FFE scan Each image reconstructed from 25 blades spaced over 360° (32 lines wide acquired in 4800 msec) 18 fully sampled 256x256 images acquired in 140 seconds - slices 1,5,9,13 shown from an axial scan (left) and sagittal scan (right)
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T1W FFE PROPELLER - motion corrupted images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Slices shown (of 18): 1, 5 Based on [Head_CNS -> Brain -> T1W_FFE] preset procedure with the following changes: Altered Examination Parameters Coil: SHC8 -> T/R Head FOV: 230 -> 256 RFOV: 80 -> 100 Matrix Scan: 400 -> 256 Reconstruction matrix: 512 -> 256 Scan %: 80 -> 12.5 Slices: 24 -> 18 Slice Thickness: 5 -> 4 Slice orientation: coronal -> [ transverse | sagittal ] TR: shortest -> user defined (150 msec) Flip Angle: 80 -> 60 Partial echo: yes -> no Gradient mode: regular -> default SofTone: yes -> no NSA: 2->1 Propeller blades: 25 maximumPropeller angle: 360 Info Scan time = 02:22.5 TR/TE: 150 / 4.6 WFS (pix) / BW (Hz) = / 217.1 In-plane axial step motion at midpoint of scan (left) In-plane sagittal step motion at midpoint of scan (right) Slices 1 an 5 shown
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T1W FFE PROPELLER - motion corrupted images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Slices shown (of 18): 9, 13 Based on [Head_CNS -> Brain -> T1W_FFE] preset procedure with the following changes: Altered Examination Parameters Coil: SHC8 -> T/R Head FOV: 230 -> 256 RFOV: 80 -> 100 Matrix Scan: 400 -> 256 Reconstruction matrix: 512 -> 256 Scan %: 80 -> 12.5 Slices: 24 -> 18 Slice Thickness: 5 -> 4 Slice orientation: coronal -> [ transverse | sagittal ] TR: shortest -> user defined (150 msec) Flip Angle: 80 -> 60 Partial echo: yes -> no Gradient mode: regular -> default SofTone: yes -> no NSA: 2->1 Propeller blades: 25 maximumPropeller angle: 360 Info Scan time = 02:22.5 TR/TE: 150 / 4.6 WFS (pix) / BW (Hz) = / 217.1 In-plane axial step motion at midpoint of scan (left) In-plane sagittal step motion at midpoint of scan (right) Slices 9 an 13 shown
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T1W TFE PROPELLER SURVEY static images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Based on [Head_CNS -> Brain -> Survey] preset procedure with the following changes: Preserved Examination Parameters Stacks: 3 Slices: 3 (9 total) Slice Thickness: 10 Slice Gap: 10 TI inversion delay: 800 TFE factor: 64 Altered Examination Parameters FOV: 250 -> 256 Scan %: 50 -> 25 WFS: 3.5 -> maximum (3.110 / Hz/pixel) Partial echo: yes -> no Gradient mode: regular -> default Flip angle: 15 -> 13 Propeller blades: 7 maximumPropeller angle: 180 Info (previous values in parentheses) Scan time = 01:09.8 TR/TE = 9.3 / 4.6 WFS (pix) / BW (Hz) = / 139.7 TFE dur. Shot / acq. = / 598.4 Based on standard Philips 3.0T survey scan Each image reconstructed from 7 blades spaced over 180° (64 lines wide) acquired in 600 msec (inversion pre-pulse delay 800 msec, non-selective) 9 fully sampled 256x256 images acquired in 70 seconds
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T1W TFE PROPELLER SURVEY motion corrupted images
Acquired on Vanderbilt Research 3.0T using R1.2.2 PROPELLER patch Based on [Head_CNS -> Brain -> Survey] preset procedure with the following changes: Preserved Examination Parameters Stacks: 3 Slices: 3 (9 total) Slice Thickness: 10 Slice Gap: 10 TI inversion delay: 800 TFE factor: 64 Altered Examination Parameters FOV: 250 -> 256 Scan %: 50 -> 25 WFS: 3.5 -> maximum (3.110 / Hz/pixel) Partial echo: yes -> no Gradient mode: regular -> default Flip angle: 15 -> 13 Propeller blades: 7 maximumPropeller angle: 180 Info (previous values in parentheses) Scan time = 01:09.8 TR/TE = 9.3 / 4.6 WFS (pix) / BW (Hz) = / 139.7 TFE dur. Shot / acq. = / 598.4 In-plane axial step motion at midpoint of scan
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